According to the first law of reflection, the incident ray, the reflected ray and the normal (at the point of incidence) all lie in the [[1]](same plane/different planes).

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Detailed Solution

According to the first law of reflection, the incident ray, the reflected ray, and the normal (at the point of incidence) lie in the same plane.
Reflection of light refers to the act of light rays hitting a surface and reflecting. The incident ray, the normal (at the point of incidence), and the reflected ray lie in the same plane, according to the First Law of Reflection. The angle of incidence and angle of reflection are always identical according to the second law of reflection. The angle between the reflected ray and the normal surface is known as the angle of reflection. Drawing a normal line perpendicular to the reflecting surface enables you to calculate the angles of incidence and reflection.

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